1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2013 Tom Gundersen <teg@jklm.no>
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 #include <arpa/inet.h>
25 #include <linux/rtnetlink.h>
29 #include "sd-dhcp-client.h"
32 #include "rtnl-util.h"
36 typedef struct Bridge Bridge;
37 typedef struct Network Network;
38 typedef struct Link Link;
39 typedef struct Address Address;
40 typedef struct Route Route;
41 typedef struct Manager Manager;
43 typedef struct bridge_join_callback bridge_join_callback;
45 struct bridge_join_callback {
46 sd_rtnl_message_handler_t callback;
49 LIST_FIELDS(bridge_join_callback, callbacks);
52 typedef enum BridgeState {
54 BRIDGE_STATE_CREATING,
58 _BRIDGE_STATE_INVALID = -1,
72 LIST_HEAD(bridge_join_callback, callbacks);
80 struct ether_addr *match_mac;
90 LIST_HEAD(Address, static_addresses);
91 LIST_HEAD(Route, static_routes);
93 Hashmap *addresses_by_section;
94 Hashmap *routes_by_section;
96 LIST_FIELDS(Network, networks);
103 unsigned char family;
104 unsigned char prefixlen;
107 struct in_addr netmask;
114 LIST_FIELDS(Address, static_addresses);
121 unsigned char family;
122 unsigned char dst_family;
123 unsigned char dst_prefixlen;
135 LIST_FIELDS(Route, static_routes);
138 typedef enum LinkState {
139 LINK_STATE_JOINING_BRIDGE,
140 LINK_STATE_SETTING_ADDRESSES,
141 LINK_STATE_SETTING_ROUTES,
142 LINK_STATE_CONFIGURED,
145 _LINK_STATE_INVALID = -1
153 struct ether_addr mac;
160 Address *dhcp_address;
164 unsigned addr_messages;
165 unsigned route_messages;
167 sd_dhcp_client *dhcp;
174 struct udev_monitor *udev_monitor;
175 sd_event_source *udev_event_source;
179 LIST_HEAD(Network, networks);
181 usec_t network_dirs_ts_usec;
184 extern const char* const network_dirs[];
188 int manager_new(Manager **ret);
189 void manager_free(Manager *m);
191 int manager_load_config(Manager *m);
192 bool manager_should_reload(Manager *m);
194 int manager_udev_enumerate_links(Manager *m);
195 int manager_udev_listen(Manager *m);
197 int manager_rtnl_listen(Manager *m);
199 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
200 #define _cleanup_manager_free_ _cleanup_(manager_freep)
204 int bridge_load(Manager *manager);
206 void bridge_free(Bridge *bridge);
208 DEFINE_TRIVIAL_CLEANUP_FUNC(Bridge*, bridge_free);
209 #define _cleanup_bridge_free_ _cleanup_(bridge_freep)
211 int bridge_get(Manager *manager, const char *name, Bridge **ret);
212 int bridge_set_link(Manager *m, Link *link);
213 int bridge_join(Bridge *bridge, Link *link, sd_rtnl_message_handler_t cb);
217 int network_load(Manager *manager);
219 void network_free(Network *network);
221 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
222 #define _cleanup_network_free_ _cleanup_(network_freep)
224 int network_get(Manager *manager, struct udev_device *device, Network **ret);
225 int network_apply(Manager *manager, Network *network, Link *link);
227 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
228 const char *section, unsigned section_line, const char *lvalue,
229 int ltype, const char *rvalue, void *data, void *userdata);
233 const struct ConfigPerfItem* network_gperf_lookup(const char *key, unsigned length);
236 int route_new_static(Network *network, unsigned section, Route **ret);
237 int route_new_dynamic(Route **ret);
238 void route_free(Route *route);
239 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
241 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
242 #define _cleanup_route_free_ _cleanup_(route_freep)
244 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
245 const char *section, unsigned section_line, const char *lvalue,
246 int ltype, const char *rvalue, void *data, void *userdata);
248 int config_parse_destination(const char *unit, const char *filename, unsigned line,
249 const char *section, unsigned section_line, const char *lvalue,
250 int ltype, const char *rvalue, void *data, void *userdata);
253 int address_new_static(Network *network, unsigned section, Address **ret);
254 int address_new_dynamic(Address **ret);
255 void address_free(Address *address);
256 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
257 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
259 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
260 #define _cleanup_address_free_ _cleanup_(address_freep)
262 int config_parse_address(const char *unit, const char *filename, unsigned line,
263 const char *section, unsigned section_line, const char *lvalue,
264 int ltype, const char *rvalue, void *data, void *userdata);
266 int config_parse_label(const char *unit, const char *filename, unsigned line,
267 const char *section, unsigned section_line, const char *lvalue,
268 int ltype, const char *rvalue, void *data, void *userdata);
272 int link_new(Manager *manager, struct udev_device *device, Link **ret);
273 void link_free(Link *link);
274 int link_add(Manager *manager, struct udev_device *device, Link **ret);
275 int link_configure(Link *link);
277 int link_update(Link *link, sd_rtnl_message *message);
279 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
280 #define _cleanup_link_free_ _cleanup_(link_freep)
282 /* Macros which append INTERFACE= to the message */
284 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
285 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
286 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
287 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
288 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
289 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
291 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
293 /* More macros which append INTERFACE= to the message */
295 #define log_full_bridge(level, bridge, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", bridge->name, "%s: " fmt, bridge->name, ##__VA_ARGS__)
296 #define log_debug_bridge(bridge, ...) log_full_bridge(LOG_DEBUG, bridge, ##__VA_ARGS__)
297 #define log_info_bridge(bridge, ...) log_full_bridge(LOG_INFO, bridge, ##__VA_ARGS__)
298 #define log_notice_bridge(bridge, ...) log_full_bridge(LOG_NOTICE, bridge, ##__VA_ARGS__)
299 #define log_warning_bridge(bridge, ...) log_full_bridge(LOG_WARNING, bridge,## __VA_ARGS__)
300 #define log_error_bridge(bridge, ...) log_full_bridge(LOG_ERR, bridge, ##__VA_ARGS__)
302 #define log_struct_bridge(level, bridge, ...) log_struct(level, "INTERFACE=%s", bridge->name, __VA_ARGS__)
304 #define BRIDGE(bridge) "INTERFACE=%s", bridge->name
305 #define ADDRESS_FMT_VAL(address) \
306 (address).s_addr & 0xFF, \
307 ((address).s_addr >> 8) & 0xFF, \
308 ((address).s_addr >> 16) & 0xFF, \
309 (address).s_addr >> 24